Brake system for detachable-truck trains.



c w. RUSSELL. BRAKE SYSTEM FOR DETACHABLE TRUCK TRAINS.

APPLICATION FILED MAR. 16. 1912.

Patented Nov. 30, 1915.

2 SHEETSSHEET l- 74? fl? (Am as COLUMBIA PLAN OORAPH co., WASHINGTON, D.c.

C. W. RUSSELL.

BRAKE SYSTEM FOR DETACHABLE TRUCK TRAINS.

APPLICATION FILED MAR. I6. 1912.

Patented Nov. 30, 1915.

2 SHEETS-SHEET 2.

COLUMBIA PLANDGRAPH CO-IWASHINGTON. D. c.

snares an orrron.

CLINTON w. nUssELL, orv n-nrnor'r, MICI-ITG'AN.

.BRAKE SYSTEM FOR DETACHAIBLE-TRUCK TRAINS.

- Specification of Letters Patent.

I 'Patented Nov. 30, 1915.

Application filed March 16, 1912. Serial No. 684,197.

To all whom it may concern:

Be it known that I, CLINTON W. RUSSELL, a citizen of the United Statesof America, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements inBrakeSystems for Detachable-Truck Trains, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to detachable truck trains more particularlydesigned for use 1n.

logging, the trucks being connected by the logs when loaded, and whenempty being directly coupled to each other.

It is the object of the invention to provide an air brake system whichis operable both in the loaded. and unloaded condition of the train, andto this end the invention consists in the construction as hereinafterset forth. V

In the drawings,-Figure 1 is a side elevation of a loaded pair of trucksshowing the arrangement of the V brake operating mechanism thereon; Fig.2 is a similar view of a modified construction; Fig. 3 is a plan 1 viewof one of the trucks; Fig. 4 is a sectional side elevation thereof.

A is a detachable truck provided with the usual bunk B or other supportupon which the logs may be loaded and C are the .draftbars for couplingthe trucks to each other. My improved pneumatic brake system comprises asuitable brake operating mechanism on each truck (notshown in detail)and which is operated by air con veyed to each truck through a trainpipe. Inasmuch however, as the trucks'when loaded are in separatedpairs, while in the unloaded condition they are coupled directly to eachother, it is obvious that the ordinary train pipe used on flat carscannot be employed.

The essential feature of my invention broadly described is an extensibletrain pipe which when the trucks are separated may be extended to bridgethe space therebetween, while in the unloaded condition it is capable ofbeing shortened to couple the pipe of one truck directly with that of anadjacent truck. One construction which may be used for this purpose isshown in Fig. 1 of the drawrugs and consists of a series of train pipesections D detachably connected by the usual hose couplers E andtogether spanning the space between the separated trucks when loaded.These sections may be held in position by chains orother securing meansF which extend around the load of logs to suspend the pipe sectionstherefrom. When the trucks are empty the sections D may be detached andcarried on the trucks back to the point of loading where they are againused for extending the'train pipe.

In Fig. 2 a modified construction is shown in which in place of sectionsof rigid pipe, the air connection is formed by a flexible hose G on eachtruck of sufiicient length to meet the corresponding hose on thecoopcrating. truck in the loaded train. The hose is suspended by chainsF similar to those used in the construction shown in Fig. 1, butpreferably provided with eyes H through .which the hose may be drawn. Tocontract the hose when the trucks are empty it is preferably reeled upona drum I which is mounted upon the truck frame and is'operated from oneside. thereof by means of a suitable crank J and locked from move mentby suitable means such as the notched wheel K and dog L. The outer endof the hose isprovided with the coupling M but the inner end ispreferably attached to a fitting upon the collar or drum I and whichreceivesits air through a conduit N axially engaging the drum. The hoseis preferably guided by suitable groove wheels or sheaves O onthe truckframe over which it runs and which support the flexible end where twotrucks are coupled directly to each other.

With each of the modifications which has been described the train pipemay be ex- 7 another, and means for supporting said sec- 1 tions fromthe load upon said trucks.

In testimony whereof I atfix my signature in presence of two Witnesses.

CLINTON -W. RUSSELL.

otherwise-the same as the standard constructions in use and the engineeris thus able to control the entire train.

hat I claim as my invention is:

The combination With a pair of detach able trucks each provided with airbrake mechanism, of a series of train pipe sections detachably connectedfor coupling the air brake mechanism ofone truck with that ofWVitn'e'sses E. F. SoHnMANsKY, CHAS. C. STEGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. 0.

